One bottle of shampoo costs $6 for 8oz. A second bottle costs $4 for 5oz. Which has the lower unit rate?
To determine which bottle has the lower unit rate, we need to calculate the cost per ounce for each bottle.
For the first bottle of shampoo, the cost is $6 for 8oz. To find the cost per ounce, we divide the total cost by the number of ounces:
Cost per ounce for the first bottle = $6 ÷ 8oz = $0.75/oz
For the second bottle of shampoo, the cost is $4 for 5oz. Again, we divide the total cost by the number of ounces to find the cost per ounce:
Cost per ounce for the second bottle = $4 ÷ 5oz = $0.80/oz
Comparing the two unit rates, we can see that the first bottle has a lower unit rate of $0.75/oz, while the second bottle has a unit rate of $0.80/oz. Therefore, the first bottle of shampoo has the lower unit rate.
6/8 = $0.75 per ounce
4/5 = $0.80 per ounce